ADTRAN AOS Version R10.1.0 Command Reference Manual page 2794

Command Reference Guide
decrement <value>
Default Values
By default, VRRP is enabled.
By default, a VRRP router will preempt with no additional delay.
The default configured priority for a VRRP router that is either a backup router or not the IP address owner
is 100. The default actual priority of a VRRP router that is the IP address owner is 255.
By default, startup-delay is enabled with a default value of 35 seconds.
By default, the advertisement interval is 1 second.
By default, the default decrement value is 10.
Command History
Release 16.1
Functional Notes
A VRRP router may be part of more than one virtual router group. Although VRRP group VRIDs can be
numbered between 1 and 255, only two VRRP routers per interface are supported.
It is recommended that the timers advertise setting is kept at the default value. If it is necessary to change
this setting, ensure that all VRRP routers are configured with the new value, as all VRRP routers in the
virtual group must have the same advertisement interval value. It is also recommended that if the timers
learn function is enabled on one router in a virtual router group, then the timers learn function should be
enabled on all routers in the group.
When the virtual router's specified IP address is independent of the IP addresses assigned to real
interfaces on the VRRP routers, there is no IP address owner. This addressing method is preferred if
object tracking will be used to monitor the network connection. The IP address used for the virtual router
must be on the same subnet as either the primary or secondary IP addresses assigned to the VRRP
router's real interface.
A track must be created before the vrrp track command can be issued. Refer to the
Track Command Set on page 2977
virtual router IP address, then the VRRP router's priority level cannot be decremented as a result of the
track command. If object tracking will be used, it is important that no VRRP router own the virtual router IP
address.
Usage Examples
The following example describes a VRRP router within virtual router group 1 as the Default Master
Router:
(config)#interface vlan 1
(config-interface-vlan 1)#vrrp 1 description Default Master Router
60000CRG0-35E
Optional. Specifies the numerical amount to decrement the VRRP's priority
level if the track transitions to a FAIL state. Decrement value range is 1 to
254.
Command was introduced.
for more information on creating tracks. If a VRRP router owns the
Copyright © 2012 ADTRAN, Inc.
VLAN Interface Command Set
Network Monitor
2794